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/* Copyright 2013-2017 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <QObject>
#include <QAbstractListModel>
#include <QSet>
#include <QList>
#include "BaseInstance.h"
#include "BaseInstanceProvider.h"
#include "multimc_logic_export.h"
#include "QObjectPtr.h"
class QFileSystemWatcher;
class BaseInstance;
class QDir;
class MULTIMC_LOGIC_EXPORT InstanceList : public QAbstractListModel
{
Q_OBJECT
public:
explicit InstanceList(SettingsObjectPtr globalSettings, const QString &instDir, QObject *parent = 0);
virtual ~InstanceList();
public:
QModelIndex index(int row, int column = 0, const QModelIndex &parent = QModelIndex()) const;
int rowCount(const QModelIndex &parent = QModelIndex()) const;
QVariant data(const QModelIndex &index, int role) const;
Qt::ItemFlags flags(const QModelIndex &index) const;
enum AdditionalRoles
{
GroupRole = Qt::UserRole,
InstancePointerRole = 0x34B1CB48, ///< Return pointer to real instance
InstanceIDRole = 0x34B1CB49 ///< Return id if the instance
};
/*!
* \brief Error codes returned by functions in the InstanceList class.
* NoError Indicates that no error occurred.
* UnknownError indicates that an unspecified error occurred.
*/
enum InstListError
{
NoError = 0,
UnknownError
};
InstancePtr at(int i) const
{
return m_instances.at(i);
}
int count() const
{
return m_instances.count();
}
InstListError loadList(bool complete = false);
/// Add an instance provider. Takes ownership of it. Should only be done before the first load.
void addInstanceProvider(BaseInstanceProvider * provider);
InstancePtr getInstanceById(QString id) const;
QModelIndex getInstanceIndexById(const QString &id) const;
QStringList getGroups();
void deleteGroup(const QString & name);
signals:
void dataIsInvalid();
private slots:
void propertiesChanged(BaseInstance *inst);
void groupsPublished(QSet<QString>);
void providerUpdated();
private:
int getInstIndex(BaseInstance *inst) const;
void suspendWatch();
void resumeWatch();
void add(const QList<InstancePtr> &list);
protected:
int m_watchLevel = 0;
QSet<BaseInstanceProvider *> m_updatedProviders;
QString m_instDir;
QList<InstancePtr> m_instances;
QSet<QString> m_groups;
SettingsObjectPtr m_globalSettings;
QVector<shared_qobject_ptr<BaseInstanceProvider>> m_providers;
};
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